<?php

$boundray = time();   
$h   = array();
$m_line="\r\n";
//准备头和XML文档   
$h[] = "Content-Type:  multipart/form-data; boundary=".$boundray;   
$h[] = "Connection: Keep-Alive";

$t = array();
$t[] = "--".$boundray;
$t[] = "Content-Disposition: form-data; name=\"UPLOAD_IDENTIFIER\"".$m_line;
$t[] = "34f4eec9d2922ab59d23c8b02291dd4f";   
$t[] = "--".$boundray;
$t[] = "Content-Disposition: form-data; name=\"json\"".$m_line;
$t[] = $content;
$t[] = "--".$boundray;
$t[] = "Content-Disposition: form-data; name=\"File_1\"; filename=\"".'abc.jpg'."\"";
$t[] = "Content-Type: image/jpeg".$m_line.$m_line;   
$c = implode($m_line,$t);
//准备二进制内容
$upload_fp = fopen($upload_arr['tmp_name'], "rb");
while(!feof($upload_fp)) {
$file_piece = fread($upload_fp, 4096);
$c .= $file_piece;                   
}       
fclose($upload_fp);

$c .=$m_line."--".$boundray;   

// create a new cURL resource
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_PORT, $port);
curl_setopt($ch, CURLOPT_HTTPHEADER, $h);
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $c);   
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$rsp = curl_exec($ch);   
return ($rsp);